NFC Reader / Writer

I cannot read NFC cards with my iPhone using the app. I have multiple cards which can be read on other devices. I have also tested my phone's hardware by scanning the cards using the the iPhone Shortcuts app. So I know the cards are good, and the phone's NFC reader hardware works. But when I try to read the cards using the app with my phone and other phones, it does not work. Can you please help? I am giving 3 stars based on a nice UI and will increase to 5 if I get help to make it work or an explanation why it doesn’t work for me.

This is one of the better read apps I’ve used, others have odd format issues or can’t read certain data. Most of the bad reviews are from people who have devices that don’t have the physical hardware needed to read NFC, so I’d take most and toss them out. One gripe is that the “main screen” of the app is different than the pictures shown here, I wish it appeared the same because I prefer the aesthetic of the “scan” bar along the bottom like in the pictures rather than a circle off center on the bottom of the screen, but that’s a minor critique.

No help knowing what it is or how to set it up. Smh! But owner will respond to help you out and understand.